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pulling about 20mm (0.8 in) toward the rear wheel with
the other hand. There is a bracket at the place shown in
the small picture, so it cannot be pulled down directly.
f. Unplug the fuel pump and start the engine at idle
speed until the engine stops. Turn the engine stop
switch to " ", power off the vehicle and lock the
vehicle. Early production vehicles did not contain high-
pressure fuel pipe bracketsâ‘ .
g. Pull out the high-pressure oil pipe from the bracket
at the cylinder head.
h. Pull out the high-pressure oil pipe in the direction of
the arrow after pressing down the anti-dropping lock.
Note that there are high-pressure fuel pipe brackets and
cable ties at the intake manifold of vehicles produced
after March 2021. The vehicles produced before are
only lashed with cable ties.
i. After replacing the new high-pressure oil pipe, refer
to the disassembly steps to restore it.
3. Fuel pump
3.1 Use oil pressure gauge to measure fuel pressure
a. Refer to steps a to k of "Remove stepper motor and
clean up carbon deposits" in the throttle valve body, first
remove the seat cushion and storage box components,
and remove them as shown in the figure below.
b. Unplug the fuel pump and start the engine to idle
until the engine stops. Turn the engine stop switch to "
", power off the vehicle and lock the vehicle. After
putting on waterproof and oil-proof gloves, press the
anti-trip lock and pull out the high-pressure oil pipe in the
direction of the arrow.
c. Connect the high-pressure oil pipe of the original
car to the pressure gauge, and find another high-
pressure oil pipe to connect the pressure gauge and the
fuel injector.
Start the vehicle, let the engine run at idle speed, and
measure the fuel pressure. The standard pressure is:
300±10kPa (3.06±0.1Kgf/cm2, 43.5±1.45 psi). Check
valve performance: hold the pressure for 1 minute, the
pressure should be ≥240kPa (2.45Kgf/cm2, 34.8 psi).
3.2 Simple test of fuel pump
If you do not have the special equipment conditions,
you can do a simple test.
After the vehicle is in the stalled state, unlock the
vehicle and turn on the stall switch. If you do not start
the engine, you should be able to hear the sound of the
fuel pump; or pinch the high-pressure fuel pipe from the
bottom with your hands, and you should feel obvious
pressure. Take care to avoid the muffler to prevent
burns. If it is in the engine starting state, the whole
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